Math Help
You may need math help if you are taking a standardized exam that contains a section on math skills. This page gives you the formulas you need for most geometry problems.
While many students can answer basic math questions without too much trouble, questions on geometric reasoning usually prove to be more difficult.
Geometric reasoning questions cover the measurement of circles, triangles, squares, or rectangles. You may also be asked to find midpoints, find x or y intercepts, or calculate slope.
Here are some useful geometry math formulas.
Area of a circle:
Π × radius squared
Circumference of a circle:
Π × diameter
Area of a square or rectangle:
length × width
Perimeter of a square or rectangle:
(length × 2) + (width × 2)
Midpoints formula:
For two points on a graph (x1, y1) and (x2, y2), the midpoint is: (x1 + x2) ÷ 2 , (y1 + y2) ÷ 2
Slope-intercept formula:
In order to calculate the slope or y intercept of a line, you need this formula: y = mx + b
NOTE: m is the slope and b is the y intercept (the point at which the line crosses the y axis).
Cone volume:
To find the volume of a cone, you need this formula: Cone volume = (Π x radius2 x height) ÷ 3
Triangle area:
To solve this type of problem, you need the following equation: Triangle area = (base x height) ÷ 2
Hypotenuse length:
The length of the hypotenuse (side C) squared is always the sum of the squares of the other two sides (A and B) of the triangle: C2 = A2 + B2
More math formulas are becoming soon! Please check our site frequently!